My Mazda B3000 has been idling roughly recently. What could be causing this?
There are several possible causes for this that you may have to check one by one. First, if your Mazda B3000 has a carburetor, you may have a bad accelerator pump or a faulty power circuit. If the pump is not working, replace it; but if the power circuit is indeed faulty, you will have to change the carburetor itself. Second, check if you have a vacuum leak. Make sure that you have a diagram of your truck's vacuum hose before you look for the leak since you have to inspect every vacuum line. Replace any missing, loose, or worn-out line you find. Lastly, check if your speedometer is working erratically, if the ABS and Check Engine Lights are on, or if you are also having automatic transmission shifting problems. It could be due to a water intrusion into a connector located under your truck's cab beneath the driver's seat. You will have to replace this component, which you could replace as soon as possible.
I have a Mazda B3000 that cranks but doesn't start. How can I fix it?
If your Mazda B3000's engine cranks but it won't start, then one of several components may be faulty. First, check if there's a spark. You can do this by connecting a spark plug tester to a plug wire while your truck's engine is cranking. Make sure that the tester is grounded to the engine block so that there is a good electrical connection. If you don't see a series of sparks while cranking the engine, then your truck might have a bad crankshaft position sensor, a faulty ignition module, or a broken ignition coil, which will have to be replaced. Otherwise, then the ignition system is working properly, and you'll need to move on to the next component, which is the timing belt. It is usually enclosed inside a plastic cover on the end of your truck's engine. If the belt looks okay and turns when the engine is cranked, then compression is most likely not the problem. However, if you notice that it's loose or if the cogs on the underside of the belt are damaged, then you should replace it as soon as possible.
I noticed that my Mazda B3000 has been running poorly lately and recently the Check Engine Light has come on. What's going on with my truck?
A dirty or contaminated mass airflow (MAF) sensor may cause your Mazda B3000's engine to run badly. To confirm if this component is the problem, scan for any fault codes that may indicate a problem with the MAF sensor. If this is the case, you will have to clean it by placing it in a plastic bag filled with rubbing alcohol, then move it around so that the alcohol washes away the dirt. If this doesn't help, you might have to replace the sensor with a new one. To prevent this from happening again, it is recommended that you clean the MAF sensor every time you change your oil and filters.